code: def test_shift_empty(self, simple_index):
      # GH#14811
      idx = simple_index[:0]
      tm.assert_index_equal(idx, idx.shift(1))
  
file_path: pandas/pandas/tests/indexes/test_datetimelike.py
imports: import numpy
  import pytest
  import pandas
  import pandas._testing
label_desc: Use image node_id 6 for calling the TestDatetimeLike obj's underlying member method code with example usage: obj.test_shift_empty(simple_index) without return types